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| | LSDRasterMaker () |
| | Constructor. Create an LSDRasterMaker from an LSDRaster. More...
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| | LSDRasterMaker (LSDRaster &An_LSDRaster) |
| | Constructor. Create an LSDRasterMaker from an LSDRaster. More...
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| | LSDRasterMaker (string filename, string extension) |
| | Constructor. Create an LSDRasterMaker from a file. Uses a filename and file extension. More...
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| | LSDRasterMaker (int NRows, int NCols) |
| | Constructor. Create a blank raster nodel. More...
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| LSDRaster | return_as_raster () |
| | This just returns the raster model object data as a raster. More...
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| void | resize_and_reset (int new_rows, int new_cols, float new_resolution, float new_value) |
| | This resizes the LSDRasterModel, resetting some flags in the process, as well as setting many of the Array2D data members to be empty arrays The raster data in the end is a random surface (determined by the noise data member) This overloaded version also changes the data resolution. More...
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| vector< float > | minimum_and_maximum_value () |
| | Gets the minimum and maximum values from a raster. More...
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| void | scale_to_new_minimum_and_maximum_value (float new_minimum, float new_maximum) |
| | This linearly scales the raster to new minimum and maximum values. More...
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| void | smooth (int boundary_type) |
| | This smooths the raster. At some point in the future I'll add more options but at the moment it just uses 4 neighbours and has double weighting on the central pixel. It assumes periodic boundaries on the E/W. More...
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| void | random_square_blobs (int minimum_blob_size, int maximum_blob_size, float minimum_value, float maximum_value, int n_blobs) |
| | This makes square blobs randomly in the DEM. More...
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| void | sine_waves (vector< float > x_coefficients, vector< float > y_coefficients) |
| | This function adds some sine waves together to get patterns. More...
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| LSDRaster | clip_to_smaller_raster (LSDRaster &smaller_raster) |
| | This returns a clipped raster that has the same dimensions as the smaller raster. More...
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| LSDRaster | clip_to_smaller_raster (LSDIndexRaster &smaller_raster) |
| | This returns a clipped raster that has the same dimensions as the smaller raster. More...
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| void | write_RasterData_to_text_file (string filename) |
| | This function returns the raster data as text file. More...
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| vector< float > | get_RasterData_vector () |
| | This function returns the raster data as a vector. More...
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| vector< float > | get_XY_MinMax () |
| | This function returns a vector with the X adn Y minimum and max values. More...
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| LSDRaster () |
| | The create function. This is default and throws an error.
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| | LSDRaster (string filename, string extension) |
| | Create an LSDRaster from a file. Uses a filename and file extension. More...
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| | LSDRaster (int nrows, int ncols, float xmin, float ymin, float cellsize, float ndv, Array2D< float > data) |
| | Create an LSDRaster from memory. More...
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| | LSDRaster (int nrows, int ncols, double xmin, double ymin, double cellsize, double ndv, Array2D< double > data) |
| | Create an LSDRaster from memory, with the elvation data stored as double precision floats. More...
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| | LSDRaster (int nrows, int ncols, float xmin, float ymin, float cellsize, float ndv, Array2D< float > data, map< string, string > temp_GRS) |
| | Create an LSDRaster from memory, includes georeferencing. More...
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| int | get_NRows () const |
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| int | get_NCols () const |
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| float | get_XMinimum () const |
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| float | get_YMinimum () const |
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| float | get_DataResolution () const |
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| int | get_NoDataValue () const |
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| Array2D< float > | get_RasterData () const |
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| Array2D< double > | get_RasterData_dbl () const |
| | Get the raw raster data, double format. More...
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| Array2D< int > | get_RasterData_int () const |
| | Get the raw raster data, integer format. More...
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| map< string, string > | get_GeoReferencingStrings () const |
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| float | get_data_element (int row, int column) |
| | Get the raster data at a specified location. More...
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| void | set_data_element (int row, int column, float value) |
| | Sets the raster data at a specified location. More...
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LSDRaster & | operator= (const LSDRaster &LSDR) |
| | Assignment operator.
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| void | read_raster (string filename, string extension) |
| | Read a raster into memory from a file. More...
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| TNT::Array2D< double > | get_ascii_raster (string FILENAME) |
| | Reads a raster from an ascii file for use in LSDCatchmentModel. More...
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void | read_ascii_raster (string FILENAME) |
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| void | read_ascii_raster_integers (string FILENAME) |
| | Reads a raster of integers and populates LSDRaster integer array member data. More...
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| void | write_raster (string filename, string extension) |
| | Read a raster from memory to a file. More...
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| void | write_double_raster (string filename, string extension) |
| | This calls raster write functions, writing from Arrays of type <double> to raster format. More...
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void | write_double_asc_raster (string string_filename) |
| | Writes out a double array to an ascii.
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void | write_double_flt_raster (string filename, string string_filename) |
| | Writes out a double array to a binary flt file.
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| void | write_double_bil_raster (string filename, string string_filename) |
| | Writes out a double array to a ENVI bil file (untested!) More...
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| bool | does_raster_have_same_dimensions (LSDRaster &Compare_raster) |
| | Checks to see if two rasters have the same dimensions Does NOT check georeferencing. More...
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| bool | does_raster_have_same_dimensions (LSDIndexRaster &Compare_raster) |
| | Checks to see if two rasters have the same dimensions Does NOT check georeferencing. More...
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| bool | does_raster_have_same_dimensions_and_georeferencing (LSDRaster &Compare_raster) |
| | Checks to see if two rasters have the same georeferencing. More...
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| bool | does_raster_have_same_dimensions_and_georeferencing (LSDIndexRaster &Compare_raster) |
| | Checks to see if two rasters have the same georeferencing. More...
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| map< string, string > | Update_GeoReferencingStrings (float NewXmin, float NewYmax) |
| | Method which takes a new xmin and ymax value and modifys the GeoReferencingStrings map_info line to contain these new values. More...
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| void | Update_GeoReferencingStrings () |
| | Method which updates the map info element of the georeferencing strings based on information within the datamembers of the raster. More...
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| void | impose_georeferencing_UTM (int zone, string NorS) |
| | This method imposes georefereing strings assuming the coordinate system is UTM. More...
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| int | Find_UTM_central_meridian (int UTM_zone) |
| | This method looks up the central meridian given a UTM zone. More...
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| void | get_UTM_information (int &UTM_zone, bool &is_North) |
| | this function gets the UTM_zone and a boolean that is true if the map is in the northern hemisphere More...
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| void | get_x_and_y_locations (int row, int col, double &x_loc, double &y_loc) |
| | this gets the x and y location of a node at row and column More...
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| void | get_x_and_y_locations (int row, int col, float &x_loc, float &y_loc) |
| | this gets the x and y location of a node at row and column More...
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| void | get_lat_and_long_locations (int row, int col, double &lat, double &longitude, LSDCoordinateConverterLLandUTM Converter) |
| | a function to get the lat and long of a node in the raster Assumes WGS84 ellipsiod More...
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| void | get_easting_and_northing_vectors (vector< float > &Eastings, vector< float > &Northings) |
| | This returns vectors of all the easting and northing points in the raster Used for interpolations. More...
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| vector< float > | interpolate_points_bilinear (vector< float > UTMEvec, vector< float > UTMNvec) |
| | This interpolates a vector of points onto the raster. Uses bilinear interpolation. More...
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| LSDRaster | fill_with_interpolated_data (vector< int > rows_of_nodes, vector< int > cols_of_nodes, vector< float > interpolated_data) |
| | This fills a raster with precalculated interpolated data. More...
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| float | get_value_of_point (float UTME, float UTMN) |
| | This gets the value at a point in UTM coordinates. More...
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| bool | check_if_point_is_in_raster (float X_coordinate, float Y_coordinate) |
| | this check to see if a point is within the raster More...
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| void | get_row_and_col_of_a_point (float X_coordinate, float Y_coordinate, int &row, int &col) |
| | Gets the row and column of a point in the raster. More...
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| vector< float > | get_XY_MinMax () |
| | This function returns a vector with the X adn Y minimum and max values. More...
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| vector< float > | get_RasterData_vector () |
| | This function returns the raster data as a vector. More...
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| vector< float > | get_RasterData_vector_No_NDVs () |
| | This function returns the raster data as a vector, ignoring NDVs. More...
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| void | write_RasterData_to_text_file (string filename) |
| | This function returns the raster data as text file. More...
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| void | rewrite_with_random_values (float range) |
| | rewrite all the data array values with random numbers (with a uniform distribution). More...
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| LSDRaster | create_raster_nodata () |
| | Create a raster in of the same number of rows and cols with nodata. More...
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| LSDRaster | RasterTrimmer () |
| | Calculate the minimum bounding rectangle for an LSDRaster Object and crop out all the surrounding NoDataValues to reduce the size and load times of output rasters. More...
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| LSDRaster | RasterTrimmerPadded (int padded_pixels) |
| | Calculate the minimum bounding rectangle for an LSDRaster Object and crop out all the surrounding NoDataValues to reduce the size and load times of output rasters. Similar to RasterTrimmer but has a pixel buffer. Useful for CRN data since sometimes the channel in the DEM does not correspond exactly with the data point. More...
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| LSDRaster | RasterTrimmerSpiral () |
| | Takes a raster and trims nodata from around the edges to result in a rectangular LSDRaster. More...
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| LSDRaster | clip_to_smaller_raster (LSDRaster &smaller_raster) |
| | This returns a clipped raster that has the same dimensions as the smaller raster. More...
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| LSDRaster | clip_to_smaller_raster (LSDIndexRaster &smaller_raster) |
| | This returns a clipped raster that has the same dimensions as the smaller raster. More...
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| LSDRaster | LSDRasterTemplate (Array2D< float > InputData) |
| | Make LSDRaster object using a 'template' raster and an Array2D of data. More...
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| void | strip_raster_padding () |
| | Strips the edge rows/columns of a LSDRaster on each side of the array. More...
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| LSDRaster | BufferRasterData (float window_radius) |
| | Buffers a raster using a circular kernel of a user-defined radius (m) More...
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| LSDRaster | calculate_relief (float kernelWidth, int kernelType) |
| | Calculates a relief raster. More...
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| float | mean_elevation (void) |
| | Calculates mean elevation of a raster. More...
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| float | max_elevation (void) |
| | Calculates max elevation of a raster. More...
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| float | mean_relief (float kernelsize) |
| | Calculates mean relief of a raster, it defaults to a circular kernal. More...
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| float | difference_rasters (LSDRaster &compare_raster) |
| | Calculates the mean difference between two rasters. More...
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| void | raster_multiplier (float multiplier) |
| | This multiplies the raster data by a multiplier Note that values are replaced. More...
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| LSDRaster | MapAlgebra_multiply (LSDRaster &M_raster) |
| | This multiplies two rasters, elementwise Simple elementwise multiplictation. More...
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| LSDRaster | MapAlgebra_divide (LSDRaster &M_raster) |
| | This divides two rasters, elementwise Simple elementwise division. More...
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| LSDRaster | MapAlgebra_add (LSDRaster &M_raster) |
| | This add two rasters, elementwise Simple elementwise addition. More...
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| LSDRaster | MapAlgebra_subtract (LSDRaster &M_raster) |
| | This subtracts two rasters, elementwise Simple elementwise subtraction. More...
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| float | WrapSample (int row, int col) |
| | This returns a value from the array data element but wraps around the array dimensions so that row > NRows (for example) returns a value. More...
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| void | SetWrapSample (int row, int col, float value) |
| | This sets a value in the data array withthe added feature that it wraps beyond NRows and NCols. More...
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| void | DSSetFeatureCorners (int featuresize, float scale) |
| | This sets the corners of features as the first step in the diamond square algorithm. More...
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| void | DSSampleSquare (int row, int col, int size, float value) |
| | This is the square sampling step of the diamond square algorithm: it takes the average of the four corners and adds a random number to set the centrepoint of a square. More...
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| void | DSSampleDiamond (int row, int col, int size, float value) |
| | This is the diamond sampling step of the diamond square algorithm: it takes the average of the four corners and adds a random number to set the centrepoint of a diamond. More...
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| void | DiamondSquare_SampleStep (int stepsize, float scale) |
| | This is the sampling function for the diamond square algorithm: it runs both a diamond and a square sampling for each step. More...
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| LSDRaster | DiamondSquare (int feature_order, float scale) |
| | This is the driving function for the diamond square algorithm. More...
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| LSDRaster | hillshade () |
| | This function generates a hillshade raster. More...
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LSDRaster | hillshade (float altitude, float azimuth, float z_factor) |
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| Array2D< float > | Shadow (int theta, int phi) |
| | This function generates a hillshade derivative raster using the algorithm outlined in Codilean (2006). More...
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| LSDRaster | CastShadows (int Azimuth, int ZenithAngle) |
| | Function to determine areas of a DEM that are in shadow from a given radiation source defined by an Azimuth and Zenith following Codilean (2006). More...
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| Array2D< float > | Shadows (int Azimuth, int ZenithAngle) |
| | Function to determine areas of a DEM that are in shadow from a given radiation source defined by an Azimuth and Zenith following Codilean (2006). More...
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| LSDRaster | TopographicShielding (int theta_step, int phi_step) |
| | This function generates a topographic shielding raster using the algorithm outlined in Codilean (2006). More...
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LSDRaster | TopographicShielding () |
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| vector< LSDRaster > | calculate_polyfit_surface_metrics (float window_radius, vector< int > raster_selection) |
| | Surface polynomial fitting and extraction of topographic metrics. More...
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| vector< LSDRaster > | calculate_polyfit_roughness_metrics (float window_radius1, float window_radius2, vector< int > raster_selection) |
| | Surface polynomial fitting and extraction of roughness metrics. More...
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| void | calculate_polyfit_coefficient_matrices (float window_radius, Array2D< float > &a, Array2D< float > &b, Array2D< float > &c, Array2D< float > &d, Array2D< float > &e, Array2D< float > &f) |
| | This function calculates 6 coefficient matrices that allow the user to then calcualte slope, curvature, aspect, a classification for finding saddles and peaks and other metrics. More...
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| LSDRaster | calculate_polyfit_elevation (Array2D< float > &f) |
| | This function calculates the elevation based on a polynomial fit. More...
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| LSDRaster | calculate_polyfit_slope (Array2D< float > &d, Array2D< float > &e) |
| | This function calculates the slope based on a polynomial fit. More...
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| LSDRaster | calculate_polyfit_aspect (Array2D< float > &d, Array2D< float > &e) |
| | This function calculates the aspect based on a polynomial fit. More...
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| LSDRaster | calculate_polyfit_curvature (Array2D< float > &a, Array2D< float > &b) |
| | This function calculates the curvature based on a polynomial fit. More...
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| LSDRaster | calculate_polyfit_planform_curvature (Array2D< float > &a, Array2D< float > &b, Array2D< float > &c, Array2D< float > &d, Array2D< float > &e) |
| | This function calculates the planform curvature based on a polynomial fit. More...
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| LSDRaster | calculate_polyfit_profile_curvature (Array2D< float > &a, Array2D< float > &b, Array2D< float > &c, Array2D< float > &d, Array2D< float > &e) |
| | This function calculates the profile curvature based on a polynomial fit. More...
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| LSDRaster | calculate_polyfit_tangential_curvature (Array2D< float > &a, Array2D< float > &b, Array2D< float > &c, Array2D< float > &d, Array2D< float > &e) |
| | This function calculates the tangential curvature based on a polynomial fit. More...
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| LSDIndexRaster | calculate_polyfit_classification (Array2D< float > &a, Array2D< float > &b, Array2D< float > &c, Array2D< float > &d, Array2D< float > &e) |
| | This function identifies approximate position of stationary points within discrete surface using a threshold slope. More...
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| LSDRaster | get_hilltop_curvature (LSDRaster &curvature, LSDRaster &Hilltops) |
| | Gets the hilltop curvature raster. More...
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| LSDRaster | remove_positive_hilltop_curvature (LSDRaster &hilltop_curvature) |
| | Removes positive hilltop curvature values. More...
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| void | remove_positive_values () |
| | Removes positive values from a raster. More...
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| float | get_percentage_bedrock_ridgetops (LSDRaster &roughness, LSDRaster &hilltop_curvature, float threshold) |
| | Gets the percentage of bedrock ridges. More...
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| LSDRaster | calculate_slope_angles () |
| | Calculates slope angle in radians. Needs the slope raster. More...
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| LSDRaster | calculate_water_supply_rate_for_saturation (float soil_thick, float K, LSDRaster &ContributingArea, LSDRaster &SlopeAngle) |
| | Calculates the water supply rate required for saturation of the hillslope soil. More...
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| LSDRaster | calculate_factor_of_safety_at_saturation (float C_r, float rho_s, float soil_thick, float tan_phi, LSDRaster &SlopeAngle) |
| | This calculates the factor of safety if the soil is completely saturated. More...
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| void | calculate_polyfit_directional_cosines (Array2D< float > &d, Array2D< float > &e, Array2D< float > &l, Array2D< float > &m, Array2D< float > &n) |
| | Algorithm that assesses surface roughness based on a polynomial fit. More...
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| void | calculate_orientation_matrix_eigenvalues (float window_radius, Array2D< float > &l, Array2D< float > &m, Array2D< float > &n, Array2D< float > &s1, Array2D< float > &s2, Array2D< float > &s3) |
| | Find eigenvalues for orientation matrix. More...
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| void | calculate_plane_coefficient_matrices (float window_radius, Array2D< float > &a_plane, Array2D< float > &b_plane, Array2D< float > &c_plane) |
| | This function is a wrapper to get the three roughness eigenvalues s1, s2 and s3. More...
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| LSDRaster | calculate_REI (Array2D< float > &a_plane, Array2D< float > &b_plane, float CriticalSlope) |
| | Create the REI raster. More...
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| LSDRaster | calculate_REI (float window_radius, float CriticalSlope) |
| | Create the REI raster (imporoved wrapper) Rock exposure index defined as areas with local slope exceeding some critical slope as defined by DiBiase et al. (2012) More...
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| void | calculate_and_print_polyfit_rasters (float window_radius, string file_prefix, vector< int > file_list) |
| | this function takes the polyfit functions and requires a window radius and a vector telling the function which rasters to print to file. More...
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| void | calculate_and_print_polyfit_and_roughness_rasters (float window_radius, float roughness_radius, string file_prefix, vector< int > file_list) |
| | This function takes the combines the polyfit functions and the roughness function in one package. More...
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| void | calculate_roughness_rasters (float window_radius, float roughness_radius, string file_prefix, vector< int > file_code) |
| | This function takes the combines the roughness functions in one package. More...
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| void | remove_seas () |
| | This function changes any elevation <= 0 to NoDataValue. More...
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| void | mask_to_nodata_below_threshold (float threshold) |
| | This function changes any elevation <= threshold to NoDataValue. More...
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| LSDRaster | mask_to_nodata_using_threshold (float threshold, bool belowthresholdisnodata) |
| | This function changes any data point either above or below threshold to NoDataValue. More...
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| LSDRaster | mask_to_nodata_using_threshold_using_other_raster (float threshold, bool belowthresholdisnodata, LSDRaster &MaskingRaster) |
| | This function changes any data point either above or below threshold to NoDataValue The threshold is determined by a second raster. More...
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| LSDIndexRaster | mask_to_indexraster_using_threshold (float threshold, bool belowthresholdisnodata) |
| | This function creats an LSDIndexRaster mask (with true == 1 and otherwise nodata) from an LSDRaster. Can mask either above or below a threshold. More...
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| LSDRaster | mask_to_nodata_with_mask_raster (LSDIndexRaster &Mask_raster, int mask_value) |
| | This function masks a raster to nodata based on a mask value and a mask raster. More...
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| LSDRaster | fill () |
| | This function fills pits/sinks in a DEM by incrementing elevations for cells with no downslope neighbour. The process is repeated adnausium until no cells require incrementing. More...
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| void | fill_iterator (Array2D< float > &fill_data, int i, int j) |
| | This is a recursive algorithm that is called by the fill function. More...
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| LSDRaster | fill (float &MinSlope) |
| | This function fills pits/sinks in a DEM by checking for pits from lowest to highest elevation, starting at the DEM boundary (raster edge or adjacent to NDVs). More...
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| LSDRaster | MDFlow (vector< string > BoundaryConditions) |
| | Generate a flow area raster using a multi direction algorithm. More...
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| LSDRaster | FreemanMDFlow () |
| | Generate a flow area raster using a multi direction algorithm. More...
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| LSDRaster | FreemanMDFlow_SingleSource (int i_source, int j_source) |
| | Route flow from one source pixel using FreemanMDFlow. Adapted from SWDG's code above. More...
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| LSDRaster | FMDChannelsFromChannelHeads (vector< int > &channel_heads_rows, vector< int > &channel_heads_cols, float R_threshold) |
| | Extracts a multi-pixel channel network, as opposed to a single thread channel, using method outlined in Pelletier, 2013, WRR; A robust, two-parameter method for the extraction of drainage networks from high-resolution digital elevation models (DEMs): Evaluation using synthetic and real-world DEMs. More...
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| LSDRaster | QuinnMDFlow () |
| | Generate a flow area raster using a multi direction algorithm. More...
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| LSDRaster | M2DFlow () |
| | Generate a flow area raster using a multi 2-direction algorithm. More...
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| LSDRaster | RidgeSample (Array2D< float > &Ridges) |
| | Module to sample LSDRaster values running along a ridgetop network. More...
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| LSDRaster | RidgeSmoother (int WindowRadius) |
| | Pass a smoothing window over a ridge LSDRaster object to calculate an average value running along the ridgetop. More...
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| LSDRaster | RidgeBuffer (int BufferRadius) |
| | Pass a buffer over a ridge LSDRaster object to increase sampling area. More...
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| LSDRaster | BasinAverager (LSDIndexRaster &Basins) |
| | Module assigns an average LSDRaster value to each basin. More...
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| float | SingleBasinAverager (LSDIndexRaster &Basin) |
| | Module calculates an average value to each for a given raster from within a basin. More...
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| LSDRaster | BasinArea (LSDIndexRaster Basins) |
| | Write the area(in spatial units) of each basin to the basin's pixels. More...
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| void | GetBasinVector (LSDIndexRaster Basins, int BasinOfInterest) |
| | Convert a basin, given by a basin ID, into a chain of xy coordinates for fast plotting of vector basin outlines. More...
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| vector< LSDRaster > | BasinPuncher (vector< int > basin_ids, LSDIndexRaster BasinArray) |
| | Punch basins out of an LSDRaster to create DEMs of a single catchment. More...
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| LSDRaster | CookieCutRaster (LSDRaster Cutter) |
| | Cookie cut a raster using a smaller raster. More...
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| void | CollectBasinMetrics (LSDIndexRaster &Basins, LSDRaster &Slope, LSDRaster &Elevation, LSDRaster &Aspect, LSDRaster &Area, LSDRaster &DrainageDensity, LSDRaster &Cht, LSDRaster &HillslopeLength, LSDRaster &MeanSlope, LSDRaster &Relief, LSDRaster &MeanAspect, LSDRaster &LH_drainage_density, Array2D< float > LH_Data, float CriticalSlope, string RasterFilename) |
| | Collect all basin average metrics into a single file. More...
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| void | raster_statistics_by_index (LSDIndexRaster &IndexRaster, vector< float > &mean_vector, vector< float > &sd_vector, vector< float > &serr_vector, vector< int > &Npts_vector) |
| | Takes a raster and a corresponding index raster, and calculates the mean, sd and standard error by index. Returns four vectors: mean, st.dev., st.err and Number of points for each category. More...
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| pair< float, float > | Boomerang (LSDRaster &Slope, LSDRaster &D_inf, string RasterFilename, float log_bin_width=0.1, int SplineResolution=200, float bin_threshold=0.05) |
| | Generate data in two text files to create a boomerang plot as in Roering et al [2007]. More...
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| LSDRaster | DrainageDensity (LSDIndexRaster &StreamNetwork, LSDIndexRaster &Basins, Array2D< int > FlowDir) |
| | Calculate drainage density of a set of input basins. More...
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| float | get_drainage_density_of_raster (LSDIndexRaster &StreamNetwork, Array2D< int > FlowDir) |
| | Calculate drainage density of a DEM. More...
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| LSDRaster | HillslopeLengthFromDrainageDensity (LSDIndexRaster &StreamNetwork, LSDIndexRaster &Basins, Array2D< int > FlowDir) |
| | Simple method to calculate drainage density for each basin and then convert these values into a hillslope length raster. More...
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| void | GetVectors (LSDRaster Magnitude, LSDRaster Direction, string output_file, int step) |
| | Method to export thinned vector field data to a text file. More...
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| LSDRaster | NonLocalMeansFilter (int WindowRadius=2, int SimilarityRadius=2, int DegreeFiltering=2, float Sigma=1.25) |
| | Perform Non-local means filtering on a DEM following Baude et al [2005]. More...
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| void | PadRasterSymmetric (Array2D< float > &PaddedRasterData, int &SimilarityRadius) |
| | Creates a buffer around an array (of size SimilarityRadius) and gives the new border mirror symmetric values of the original array reflected across the boundary. More...
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| void | MakeGaussianKernel (Array2D< float > &Kernel, float sigma, int SimilarityRadius) |
| | Generate gaussian weighted kernel. More...
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| LSDRaster | GaussianFilter (float sigma, int kr=0) |
| | Filters the raster using a square 2D Gaussian filter. The filter is applied using a moving kernel of gaussian weights with a radius of 3*sigma. More...
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| LSDRaster | PeronaMalikFilter (int timesteps, float percentile_for_lambda, float dt) |
| | Filters the raster using a Perona-Malik non-linear diffusion filter. More...
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| Array2D< float > | D_inf_FlowDir () |
| | D-infinity flow direction algorithm after Tarboton (1997). More...
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| LSDRaster | D_inf_FlowArea (Array2D< float > FlowDir_array) |
| | Main function for generating a D-infinity flow area raster after Tarboton (1997). More...
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| void | D_infAccum (int i, int j, Array2D< float > CountGrid, Array2D< float > Flowarea_Raster, Array2D< float > FlowDir_array) |
| | Recursive function to calculate accumulating area for a given pixel. More...
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| LSDRaster | D_inf () |
| | Wrapper Function to create a D-infinity flow area raster with one function call. More...
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| LSDRaster | D_inf_units () |
| | Wrapper Function to create a D-infinity flow area raster, in spatial units, with one function call. More...
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| LSDRaster | D_inf_ConvertFlowToArea () |
| | Wrapper Function to convert a D-infinity flow raster into spatial units. More...
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| LSDRaster | write_dinf_flowdir_to_LSDRaster (Array2D< float > dinflow) |
| | Function to write the D-infinity flow directions to an LSDRaster. More...
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| LSDIndexRaster | D_inf_watershed (LSDRaster D_inf_FlowDir, int PourRow, int PourCol) |
| | Function to generate upslope contributing area extent from the D-infinity flow directions to an LSDRaster. More...
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| LSDRaster | calculate_topographic_index (LSDRaster &AccumulationArea, LSDRaster &Slope) |
| | Function to calculate the topographic index, a moisture distribution indicator. More...
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| LSDIndexRaster | PointShapefileToRaster (string FileName) |
| | Method to turn a point shapefile into an LSDIndexRaster. More...
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| LSDIndexRaster | PolylineShapefileToRaster (string FileName) |
| | Method to turn a polyline shapefile into an LSDIndexRaster. More...
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| LSDRaster | Resample (float OutputResolution) |
| | Method to resample an LSDRaster to a lower resolution. More...
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| Array2D< int > | create_mask (float window_radius, int neighbourhood_switch) |
| | creates a circular mask for neighbourhood statistics More...
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| LSDRaster | neighbourhood_statistics_spatial_average (float window_radius, int neighbourhood_switch) |
| | gets mean value for specified circular neighbourhood More...
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| vector< LSDRaster > | neighbourhood_statistics_spatial_average_and_SD (float window_radius, int neighbourhood_switch) |
| | gets mean & standard deviation value specified circular neighbourhood More...
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| LSDRaster | neighbourhood_statistics_local_relief (float window_radius, int neighbourhood_switch) |
| | gets relief within value specified circular neighbourhood More...
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| LSDRaster | neighbourhood_statistics_fraction_condition (float window_radius, int neighbourhood_switch, int condition_switch, float test_value) |
| | tests neighbourhood for the fraction of values for which the specified condition is met. More...
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| LSDRaster | border_with_nodata (int border_width, int irregular_switch=0) |
| | Function to change border pixels to nodata. More...
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| LSDIndexRaster | find_cells_bordered_by_nodata () |
| | This function creates a mask that has the value of 1 for cells that are either on the edge or bordered by nodata (from their 9 neighbors) More...
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| void | check_isolated_nodata () |
| | This looks for isolated instances of no data. More...
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| void | rudimentary_nodata_fill () |
| | a very rudimentay filling routine that just fills nodata nodes with the average elevation of its neighbors More...
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| LSDRaster | alternating_direction_nodata_fill (int window_width) |
| | A routine that fills nodata holes. It cannot recognise nodata around the edges so the spiral trimmer should be used first The routine sweeps the raster looking for nodata and filling this nodata with an average value from surrounding nodes. The sweeping changes directions, four sweep directions in all (+ rows, - rows, + cols, -cols) and it alternates between these directions until the raster is filled. More...
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| LSDIndexRaster | create_binary_isdata_raster () |
| | This returns an index raster with 1 for data and 0 for nodata. More...
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| LSDRaster | alternating_direction_nodata_fill_with_trimmer (int window_width) |
| | A routine that fills nodata holes. It first prepares the data with the sprial trimmer so nodata around the edges is removed. The routine sweeps the raster looking for nodata and filling this nodata with an average value from surrounding nodes. The sweeping changes directions, four sweep directions in all (+ rows, - rows, + cols, -cols) and it alternates between these directions until the raster is filled. The routine is particularly useful for data with holes that is to be prepared for spectral analysis. More...
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LSDRaster | nodata_fill_irregular_raster (int window_radius) |
| | Function to fill in no data holes in an irregular raster. Pixel must have all neighbours not equal to no data value within the specified window radius. Data is filled based on mean of pixels within the window radius.
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| LSDRaster | alternating_direction_nodata_fill_irregular_raster (int window_width) |
| | A routine that fills nodata holes. Modified by FJC to only fill holes surrounded in all directions by pixels with valid elevation values. More...
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| LSDIndexRaster | Create_Mask (string Condition, float TestValue) |
| | Function to create a masked LSDIndexRaster raster based on a conditional statement. More...
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| LSDRaster | ExtractByMask (LSDIndexRaster Mask) |
| | Function to extract an LSDRaster based on a LSDIndexRaster mask. More...
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| void | MaskRaster (LSDIndexRaster Mask) |
| | Function to update an LSDRaster based on a LSDIndexRaster mask. More...
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| LSDIndexRaster | IsolateChannelsLashermesCurvature (float sigma, string q_q_filename) |
| | method to locate channel pixels outlined by Lashermes. More...
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LSDIndexRaster | IsolateChannelsLashermesAspect (float sigma, string q_q_filename) |
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LSDIndexRaster | IsolateChannelsLashermesFull (float sigma, string q_q_filename_prefix) |
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LSDIndexRaster | IsolateChannelsLashermesCurvatureArea (float sigma, float area_threshold, string q_q_filename) |
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| LSDIndexRaster | IsolateChannelsGeonet (float timesteps, float area_threshold, float window_radius, string q_q_filename) |
| | method to locate channel pixels outlined by Passalacqua et al. (2010). More...
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| LSDIndexRaster | IsolateChannelsQuantileQuantile (string q_q_filename) |
| | uses quantile-quantile analysis to pick departure from gaussian behaviour, then uses this as a threshold to create a binary dataset. More...
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LSDIndexRaster | IsolateChannelsQuantileQuantileAdaptive (int half_width) |
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| Array2D< float > | CalculateAdaptiveCurvatureThresholdSD (int half_width) |
| | Function to calculate the curvature threshold used for DrEICH channel extraction which varies across the landscape. More...
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| LSDIndexRaster | CreateHilltopPatches (int minimum_patch_size) |
| | Method to convert an LSDRaster hilltop file into a series of contigiuous hilltop patches. More...
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LSDIndexRaster | CreateHilltopPatchesNEW (int minimum_patch_size) |
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| void | FlattenToFile (string FileName) |
| | Simple method to flatten an LSDRaster to a text file, with a sigle value on each line. More...
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| void | FlattenToCSV (string FileName) |
| | Method to flatten an LSDRaster and place the non NDV values in a csv file. More...
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| void | FlattenToWGS84CSV (string FileName) |
| | Method to flatten an LSDRaster and place the non NDV values in a csv file. More...
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| LSDRaster | RemoveBelow (float Value) |
| | Simple method to remove any values below a user supplied value from an LSDRaster. More...
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| LSDRaster | RemoveAbove (float Value) |
| | Simple method to remove any values above a user supplied value from an LSDRaster. More...
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| LSDRaster | apply_mask (LSDIndexRaster &mask) |
| | apply a mask to a raster dataset, converts pixels to nodata where mas=k=1 More...
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| LSDIndexRaster | ConvertToBinary (int Value, int ndv) |
| | Method to convert all values in an LSDRaster to a single value. More...
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| LSDRaster | MergeRasters (LSDRaster &RasterToAdd) |
| | Method to merge data from two LSDRasters WITH SAME EXTENT together. /// The data from the raster specified as an argument will be added (will overwrite the original raster if there is a conflict). More...
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| void | OverwriteRaster (LSDRaster &RasterToAdd) |
| | Method to merge data from two LSDRasters WITH SAME EXTENT together. /// The data from the raster specified as an argument will be added (will overwrite the original raster if there is a conflict). Overloaded function to rewrite original raster rather than creating a new one. More...
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| LSDIndexRaster | get_potential_floodplain_patches (LSDRaster &Relief, LSDRaster &Slope, float relief_threshold, float slope_threshold) |
| | Function to get potential floodplain patches using a slope and relief threshold. More...
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| float | get_threshold_for_floodplain (float bin_width, float peak_threshold, int peak_distance) |
| | Function to get threshold from a raster using a histogram of Probability-Density values. The function identifies the peaks in the PDF, and sets the threshold to the peak with the lowest value. This can be used to set the floodplain threshold. More...
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| float | get_threshold_for_floodplain_QQ (string q_q_filename, float threshold_condition, int lower_percentile, int upper_percentile) |
| | Function to get threshold from a raster using qq plots. More...
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| string | ChannelLengthByOrder (LSDIndexRaster &StreamNetwork, Array2D< int > FlowDir) |
| | Get the lengths in spatial units of each part of the channel network, divided by strahler order. More...
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| LSDRaster | PoupulateRasterGaussian (float minimum, float mean) |
| | Populate a raster with random noise drawn from a gaussian distribution of given mean and minimum values. More...
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| LSDRaster | PoupulateRasterSingleValue (float value) |
| | Populate a raster with a single value. More...
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| void | HilltopsToCSV (LSDRaster &CHT, LSDRaster &CHT_gradient, LSDRaster &gradient, int UTMZone, bool isNorth, int eId, string filename) |
| | Write CHT and hilltop gradient data to a *.csv file, coded by UTM coordinates as well as lat/long. More...
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| vector< vector< float > > | Sample_Along_Ridge (LSDRaster &Raster1, LSDRaster &Raster2, LSDRaster &Raster3, int a, int b, int threshold) |
| | Sample the values of 3 input rasters that intersect with the point a,b within the area defined by threshold. More...
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| LSDRaster | convert_from_feet_to_metres () |
| | function to convert feet to metres using US international feet, where 1 foot = 0.3048006096012192 metres. More...
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| LSDRaster | convert_from_centimetres_to_metres () |
| | function to convert elevations from centimetres to metres More...
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Public Member Functions inherited from LSDRaster
1.8.6
